CN101743740B - Image-scanning device - Google Patents
Image-scanning device Download PDFInfo
- Publication number
- CN101743740B CN101743740B CN2008800245764A CN200880024576A CN101743740B CN 101743740 B CN101743740 B CN 101743740B CN 2008800245764 A CN2008800245764 A CN 2008800245764A CN 200880024576 A CN200880024576 A CN 200880024576A CN 101743740 B CN101743740 B CN 101743740B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- image read
- optical system
- image
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/50—Projection printing apparatus, e.g. enlarger, copying camera with slit or like diaphragm moving over original for progressive exposure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
- H04N1/0301—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path
- H04N1/0305—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path with multiple folds of the optical path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
- H04N1/0306—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a plurality of optical elements arrayed in the main scan direction, e.g. an array of lenses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
- H04N1/1934—Combination of arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
- H04N1/1935—Optical means for mapping the whole or part of a scanned line onto the array
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/10—Mirrors with curved faces
Abstract
Provided is an image-scanning device having a large depth of field and a small size. The image-scanning device comprises a plurality of cells (13) and an imaging element (8) located in correspondence to each of the cells and imaging an imaged object. Each cell includes a first lens (3) having a first focal length (f1), an aperture (5) located at the first focal length from the first lens, and a second lens (4) located at a second focal length (f2) shorter than the first focal length (f1), opposing to the imaging element.
Description
Technical field
The present invention relates to the middle image read-outs that use such as photocopier.
Background technology
The use one dimension imaging apparatus that passes through that in photocopier, scanner, facsimile machine etc., uses scans the image that reads the position in the image read-out that reads entire image, roughly is divided into dual mode.In addition, general, the direction that is arranged with the one dimension imaging apparatus is called main scanning direction, the direction that will scan is called sub scanning direction.
A kind of in the dual mode is that the lens through monocular (monocular) dwindle the mode that is transferred on the imaging apparatus with the entire image of main scanning direction, in photocopier, is mainly used in reading of surface.In this mode, usually, the imaging apparatus, the lens that are positioned at the original copy side are fixed, and have only speculum on sub scanning direction, to move, and whole original copy is scanned.In the method, the depth of focus of original copy side (being called the depth of field (depth of field)) arrives a few mm degree, for example 6mm etc. greatly, so have following advantage: even original copy is not adjacent to the original copy reading face of photocopier, also can read original copy.For example, the advantage that can read even have that under the such situation that can't be adjacent to the original copy reading face of bookbinding place of book focus also can not be blured is so in read on the surface of photocopier, mainly use this mode.Existence is for example enumerated patent documentation 1 (being called previous methods 1) from the various patent documentations that this mode derives from.
Another kind of mode in the above-mentioned dual mode is that the image segmentation with main scanning direction becomes mode a plurality of and through compound lens (compound lens) reading images, is commonly referred to the contact-type imageing sensor.This mode is used for that read at the back side of photocopier, the original copy of facsimile machine reads, identification sensor of bank note, scanner that personal computer is used etc., is characteristic with small-sized.As the optical system of this contact-type imageing sensor, the current prior art that becomes main flow is for example disclosed in patent documentation 2.Here; Following image read-out (being called previous methods 2) is disclosed: as compound lens (being column lens array (rod lens array) in document); Use is arranged on radial direction a plurality ofly to has by the lens pillar of the distribution of the refractive index of certain functions specify and has carried out the lens of array, obtains full-size image (equalmagnification erected image).
As another example of the representative manner in the optical system of contact-type imageing sensor, disclosed mode in the patent documentation 3 is for example arranged.In this mode, through the lens that are provided with in each unit (cell) of on main scanning direction, cutting apart, the image in the zone corresponding with the unit is dwindled transfer printing, image in imaging apparatus.Synthetic through the output signal to the imaging apparatus of each unit setting being carried out image, the image (being called previous methods 3) of reduction original copy face.
In addition, though be not above-mentioned two representational modes, the structure of using speculum is disclosed in patent documentation 4.The original document reading apparatus of record is not that the scioptics array carries out the original copy face to read picture through imaging apparatus after the transfer printing in this patent documentation 4, and belongs to the mode that directly reads the image of original copy through near the extremely imaging apparatus that is arranged on original copy.In this original document reading apparatus, make from the reverberation of original copy face and in thin transparency carrier, propagate, through concave mirror optically focused to imaging apparatus.Can know also that from Fig. 2 of patent documentation 4 concave mirror is a cylindrical shape, not have the imaging effect (being called previous methods 4) of main scanning direction.
Patent documentation 1: japanese kokai publication hei 10-308852 communique
Patent documentation 2: japanese kokai publication hei 8-204899 communique
Patent documentation 3: japanese kokai publication hei 5-14600 communique
Patent documentation 4: japanese kokai publication hei 3-99576 communique (P2, (Ha) hurdle)
About previous methods 1,, there is the such problem of optical system maximization though have the big such advantage of the depth of field as stated.In addition, there is following problem: for the light path till making from the original copy face to lens when the mobile mirror does not change, the translational speed of a plurality of speculums in must control light path way, and spend cost for this reason.
About previous methods 2,, there are the little such problem of the depth of field, the big such problem of chromatic aberation though have small-sized and low-cost such advantage.
About previous methods 3, under the situation that increases the depth of field, exist the such problem of device maximization, chromatic aberation to become big such problem.
About previous methods 4, exist to increase the such problem of the depth of field on the principle.
Summary of the invention
The present invention accomplishes in order to solve above-mentioned such problem points, and its purpose is the image read-out that provides a kind of depth of field big and small-sized.
In order to reach above-mentioned purpose, the present invention constitutes as follows.
That is, the image read-out of first mode of the present invention possesses: lighting device is used for being thrown light on by the shooting thing as the shooting object; With the above-mentioned a plurality of imaging optical systems that are carried out to picture by the shooting thing; Imaging apparatus is provided with above-mentioned imaging optical system accordingly, and the picture after the imaging is made a video recording; And image processing apparatus; From the image that obtains through above-mentioned imaging apparatus, reduce originally by the shooting thing, above-mentioned image read-out is characterised in that; Above-mentioned a plurality of imaging optical system is provided with along the main scanning direction to the thing of being made a video recording with adjoining each other; The above-mentioned counter-rotating by the shooting thing is dwindled and formed images, and each above-mentioned imaging optical system has: from above-mentioned by first optical element with first focal length of shooting thing towards above-mentioned imaging apparatus configuration; Be positioned at the aperture on the focal position of rear side of above-mentioned first optical element; And second optical element that has second focal length littler at the rear side of said aperture than above-mentioned first focal length.
In addition, also can constitute each above-mentioned imaging optical system and in the light path of above-mentioned imaging apparatus, also had the speculum that makes the light path bending by the shooting thing from above-mentioned.
In addition, also can constitute said aperture and have the speculum that makes the light path bending at peristome.
In addition, at least one side in above-mentioned first optical element and above-mentioned second optical element also can be the mirror lens (mirror lens) of reflection-type.
In addition, at least one side in above-mentioned first optical element and above-mentioned second optical element is shaped between the imaging optical system of adjacency integratedly.
In addition, also can constitute said aperture can exchange with the aperture that varies in size of peristome.
In addition, also can constitute each above-mentioned imaging optical system and also have the shadow shield between above-mentioned second optical element of the adjacency of being configured in.
In addition, the reduction magnification that also can constitute in the above-mentioned imaging optical system is identical in above-mentioned each imaging optical system, is from 0.85 to 0.6 times.
Image read-out according to first mode of the present invention; Possess a plurality of imaging optical systems and imaging apparatus; In each imaging optical system, from being disposed towards the order of imaging apparatus according to first optical element, aperture, second optical element by the shooting thing.Here, with first focus configuration of first optical element first optical element and aperture.That is, in quilt shooting thing side, imaging optical system is made up of telecentric optical system.Therefore, from by the chief ray that sends of each point of shooting thing, promptly the light at the center of the entrance pupil through each imaging optical system is vertical with the object plane of being made a video recording.Therefore, even by the change in location of shooting object plane, the transfer printing multiplying power does not change yet, so can access the effect that can increase the depth of field.
And above-mentioned imaging optical system is set second focal length in second optical element littler than first focal length of first optical element, will be reversed by the shooting thing and dwindle and form images.Therefore, can realize the miniaturization of image read-out.In addition, image can be not overlapping in the imaging optical system of adjacency.In order to reduce original quilt shooting thing, the picture that synthesizes by each imaging optical system shooting through image processing gets final product.That is, owing to be to dwindle optical system, so have following effect: even obtained the picture that stands upside down, as also can be not overlapped through each imaging optical system.And; Also has following effect: even the position deviation of the picture between each imaging optical system has taken place owing to the foozle of the lens between each imaging optical system, assembly error etc.; Can reduce through the correction on the image processing does not have the erect image of deviation yet, can relax the foozle of whole optical system.
Description of drawings
Fig. 1 is the figure that the summary structure of the image read-out in the execution mode 1 of the present invention is shown.
Fig. 2 is the structure chart that the optical system of image read-out shown in Figure 1 is shown.
Fig. 3 is the figure that is illustrated in the state when having moved the original copy face in the image read-out shown in Figure 2.
Fig. 4 is the curve that is illustrated in the light intensity distributions of the main scanning direction on the imaging apparatus face in the image read-out shown in Figure 2.
Fig. 5 is the figure of an example that the structure of the imaging apparatus in the image read-out shown in Figure 2 is shown.
Fig. 6 is the figure of another example that the structure of the imaging apparatus in the image read-out shown in Figure 2 is shown.
Fig. 7 is the structure chart of the optical system of the image read-out in the execution mode 2 of the present invention.
Fig. 8 is the stereogram of first and second lens arra of the transmission-type that possesses in the image read-out shown in Figure 7.
Fig. 9 is the vertical view of aperture (aperture) array that possesses in the image read-out shown in Figure 7.
Figure 10 is the structure chart of the optical system of the image read-out in the execution mode 3 of the present invention.
Figure 11 is the stereogram of structure that the optical system of the image read-out in the execution mode 4 of the present invention is shown.
Figure 12 is the structure chart of the optical system of the image read-out in the execution mode 6 of the present invention.
Description of reference numerals
1: the original copy face; 3: the first lens arras; 4: the second lens arras; 5: aperture array; 8: imaging apparatus; 13: the unit; 101～106: image read-out; 120,121: the speculum of turning back; 123: the first mirror lens arrays; 124: the second mirror lens arrays; 125: the reflection type optical coil array; 125a: peristome; 129: the shading wall; 200: lighting device; 201: image processing apparatus.
Embodiment
Below, with reference to accompanying drawing, the image read-out as execution mode of the present invention is described.In addition, in each figure, to same or same structure division additional phase label together.
Fig. 1 illustrate possess in the image read-out 101 of execution mode 1 of the present invention after a example of summary structure among in the unit 13 stated one.Fig. 2 is the vertical view of principle that the structure of image read-out 101 is shown.This image read-out 101 roughly possesses unit 13 suitable with an example of the function that plays imaging optical system and the imaging apparatus 8 that is provided with accordingly with each unit 13 with distinguishing; In addition; Also identical in each execution mode of following explanation, possess the lighting device 200 that is thrown light on by the shooting thing that is used for as the shooting object.Each unit 13 is that above-mentioned the counter-rotating by the shooting thing dwindled and be carried out to the optical system of picture, along above-mentioned relatively by the main scanning direction of shooting thing, be that directions X shown in Figure 2 is configured to linearity with adjoining each other.In addition; Each unit 13 have the first suitable lens 3 of a example of part with the function that plays first optical element, aperture 5 and with the second suitable lens 4 of an example of the part of the function that plays second optical element, they be from above-mentioned by the shooting thing towards imaging apparatus 8 according to the arranged in order of first lens 3, aperture 5, second lens 4.The picture signal that is obtained by imaging apparatus 8 is sent to normally used image processing apparatus 201 in image read-out.The picture signal that output is handled by image processing apparatus 201, and be used for using the device of this image.For the device that uses this image, for example can enumerate the authenticity determining device of display, original copy writing station, bank note etc.In addition, below, by an example of shooting thing, be example as above-mentioned with the for example character in the original copy face 1.And,, image read-out 101 is explained in more detail with reference to accompanying drawing.
Each unit 13 has the size of width M1 on directions X, and along directions X, arranges with the interval apart from M1 (spacing) that is made up of the size identical with above-mentioned width.In addition, in Fig. 2, illustrate the structure of on directions X, having arranged these four unit of unit 13-1～13-4, but be not limited thereto, it is that plural unit 13 gets final product that image read-out 101 has a plurality of.
In Fig. 2 of this theory structure is shown,, supposes the thin-walled lens of paraxial approximate establishment and map for lens.That is it is consistent at the wall thickness direction center position of lens, to be made as the primary flat of front side and rear side in first lens 3 and second lens 4.In addition, the focal length of first lens 3 (being equivalent to first focal length) is f1, and the focal length of second lens 4 (being equivalent to second focal length) is f2.
Along light path, from the distance of original copy face 1 to first lens 3, the distance L 1 from the front side primary flat of original copy face 1 to first lens 3 roughly is first focal distance f 1 more in detail from original copy face 1 to one dimension imaging apparatus 8.In addition, from the distance of first lens 3 to the aperture 5, the distance L 2 from rear side primary flat to the aperture 5 of first lens 3 is first focal distance f 1 more in detail.And, from the distance of aperture 5 to second lens 4, the distance L 3 from the front side primary flat of aperture 5 to second lens 4 roughly is second focal distance f 2 more in detail.In addition, from the distance of second lens 4 to the one dimension imaging apparatus 8, the distance L 4 from rear side primary flat to the one dimension imaging apparatus 8 of second lens 4 roughly is second focal distance f 2 more in detail.Therefore, one dimension imaging apparatus 8 is positioned at the position that character formed images on the original copy face 1.
In addition, as stated, arranged each unit 13, so first lens 3 that possess in each unit 13, aperture 5 and second lens 4 are configured to array-like along main scanning direction along above-mentioned main scanning direction.Therefore, below, also be recited as first lens arra 3, aperture array 5, second lens arra 4 sometimes.
In addition; About one dimension imaging apparatus 8; Both can be as shown in Figure 5 be formed with the light area 9 that on main scanning direction (directions X), forms continuously on the substrate, and also can be as shown in Figure 6 cutting apart and only be formed with light area 9 in the zone of the picture that forms images out by each unit 13.Structure shown in Figure 5 has the easy such advantage of assembling of imaging apparatus 8, in structure shown in Figure 6, has the advantage that use amount is few and the cost reduction is such of the silicon that forms imaging apparatus 8.
Here, below for being easy to explanation, the numerical value that substitution is concrete.The focal length of first lens 3 and second lens 4 is made as f1=12mm, f2=9mm respectively.Therefore, distance L 2=12mm.Though distance L 1 need not necessarily to equate with f1, is made as distance L 1=12mm here.Distance L 3 need not too to equate with f2, but is made as distance L 3=9mm here.At this moment, distance L 4=9mm.In addition, the width M1 with the unit on the main scanning direction 13 is made as M1=6mm.In addition, the opening shape of aperture 5 is made as circle, its diameter is made as φ 1.2mm.
In the optical system in Fig. 2, also show the track in the original copy face 1 in the drawings from the light of certain point range.Use the track of this light, describe with the characteristic of action to the optical system in the image read-out 101 that constitutes as stated.
First characteristic is to become counter-rotating to each unit in each unit 13 to dwindle optical system.Therefore, can constituent ratio as the shooting object by the also small-sized image read-out 101 of size of shooting thing.
That is, the light that sends of point range A, B, C, D, the E from the original copy face 1 images in an A ', B ', C ', D ', E ' at the face of imaging apparatus 8.Wherein, on original copy face 1, also image in an A from the some A on the border that is present in unit 13 and the light of some E " and some E ".Because the relation of the focal length of first lens 3 and second lens 4 is f1＞f2,, the transfer printing of each unit 13 relation dwindles so being counter-rotating.Under situation based on the example of above-mentioned concrete numeral, reduction magnification be f2 ÷ f1=0.75 doubly.
Therefore, as being reversed to 0.75 times picture on main scanning direction (directions X), dwindling on the imaging surface, and obtain the image information in the original copy face 1.When this situation schematically is shown, be the character " ぁ " that has added the character " ぁ " of label 11 and added label 12.There are character " ぁ " 11 o'clock in the unit 13 on original copy face 1, in the imaging apparatus 8 of this unit 13, obtain the character " ぁ " 12 that character " ぁ " 11 counter-rotating has been dwindled.Even like this, each unit 13 has constituted and has dwindled optical system, so to each unit 13 picture that reversed, as also can be not overlapped 13 of each unit, and can reproduce original in the shooting thing through image rectification.Handle above-mentioned image rectification by image processing apparatus 201.
Second characteristic is that unit 13 constitutes by the telecentric optical system of shooting object plane side.This is the conclusion that situation about equating with first focal distance f 1 from distance L 2 derives, and the light (chief ray) at the center of the peristome through aperture 5 is the light that vertically sends from original copy face 1.That is, above-mentioned chief ray is parallel with optical axis.In such structure, as shown in Figure 3, even original copy face 1 is gone up skew to original copy face 21 at optical axis direction (Z direction), the transfer printing multiplying power also still is 0.75 times and do not change.Focusing on the imaging surface (just focus) position does not change on main scanning direction and only goes up change at optical axis direction (Z direction).Through such formation telecentric optical system, can design the optical system that on the Z direction, has the bigger depth of field.
The size of the depth of field is that the numerical aperture F through optical system roughly determines.For example, under the situation of above-mentioned concrete example, the numerical aperture F of the optical system of each unit 13 is F=10.The resolution of general photocopier (picture element density) is 600dpi, i.e. 1 pixel 42 μ m.As the value of the MTF that requires in the optical system, benchmark is for example to guarantee more than 30% with the value under the spatial frequency 61p/mm.Under the situation of above-mentioned F1=10, the depth of field of removing the benchmark of MT reconnaissance F obviously changes according to each concrete lens design, when specially enumerating concrete numerical value, is ± 1mm.The diameter of peristome that can be through only changing aperture 5 at random sets the depth of field, increases the F value if reduce the diameter of above-mentioned peristome, then can also obtain the bigger depth of field.
Therefore, in order easily to change the depth of field, in image read-out 101, employing can be changed the structure of aperture 5, perhaps, also can possess the aperture of the structure with the size that can change aperture openings portion.In addition, can also in each execution mode of following record, adopt this structure.
The 3rd characteristic is by the interval M1 of each regulation shape that is arranged in a straight line in abutting connection with ground with the unit 13 of width M1.Near the center of each unit 13, for example put the light that C sends and only image on the imaging apparatus 8 through the optical elements that are configured in the unit 13.On the other hand, the some A in the border of the light from original copy face 1 in the boundary member of unit 13, for example unit 13-1 and unit 13-2 is separated into the some A ' that belongs to unit 13-2 and belongs to the some A of unit 13-1 on 8 of imaging apparatuss " and form images.That is, the light that on first lens arra 3, belongs to unit 13-1 is point of arrival A through the light path in the unit 13-1 ", the light that on second lens arra 4, belongs to unit 13-2 is point of arrival A ' through the light path in the unit 13-2.Under near the situation of the point the A, light also is assigned to unit 13-1 and unit 13-2 according to the ratio of the light that arrives first lens arra 3, images near the of an A ' and puts A " near.
That is, the image of the boundary vicinity that the unit of adjacency is 13 is expressed as the image of two unit 13 of adjacency on 8 of imaging apparatuss, and its luminous intensity becomes little intensity according to the ratio of the distribution of the light in first lens arra 3.
Suppose paper is positioned over original copy face 1, and shine with the illumination light of the same intensity distributions through lighting device 200.That is, be made as the light which point from the original copy face 1 all sends the same intensity.When the border in certain unit 13 was made as initial point, the intensity distributions on 8 of the imaging apparatuss of this moment became as shown in Figure 4.That is, the width M1=6mm of each unit 13 on the original copy face 1 dwindles into width M2=6 * 0.75=4.5mm on 8 of imaging apparatuss.About with original copy face 1 on the luminous intensity of the suitable position of elementary boundary, comparing with the center of unit 13 becomes 0.5.Image can not disappear rapidly in the outside of width M2, and along with near boundary portion, intensity diminishes lentamente.On the contrary, even in the inboard of width M2, luminous intensity is not to be 1 fully yet near boundary member.As shown in Figure 4, surpass the width of M2=4.5mm, and till about 5.25mm, have picture.The total identical image of certain part of picture and the picture of adjacent unit in zone that surpasses the every 0.375mm in both sides of 4.5mm width.Because the unit of unit is 6mm, thus do not exist and adjacent unit between the zone of picture be 0.75mm, this is a surplus.
Can know that from Fig. 4 importantly 13 boundary portion reaches zero to luminous intensity in the unit.That is, the image in the unit 13 of expression adjacency does not have overlapped.Therefore, even obtain reverse image, make the image inversion of each unit 13 and make that boundary portion is overlapped also to access the image that does not have afterimage through each unit 13.And, through make with luminous intensity a little less than the suitable image of boundary portion overlapped, even in single unit 13 image a little less than boundary portion becomes luminous intensity, also can reduce original luminous intensity.
Establish reduction magnification littler, can prevent that more picture is in the overlapped situation of boundary portion than 0.75 times.On the other hand, also need reduce the size of a pixel of transducer with reduction magnification coupling ground.Therefore, the luminous sensitivity that receives that produces imaging apparatus reduces such problem.That is,,, on imaging apparatus, become 31.5 μ m though a pixel is equivalent to 42 μ m on the original copy face in order to keep the resolution of 600dpi at the original copy face.Solid-state imager generally has the insensitive zones such as transmission road of signal beyond sensitive surface.Even owing to dwindled the Pixel Dimensions of imaging apparatus, the width in this insensitive zone is also constant, so the ratio of sensitive surface diminishes relatively.In other words, the aperture of imaging apparatus diminishes than (aperture ratio).Therefore, when making reduction magnification too small, produce the problem that causes receiving the luminous sensitivity reduction.When receiving the luminous sensitivity step-down, need to strengthen illumination intensity, produce the problem on power consumption, the cost.
That is,, then preferably reduction magnification is made as 0.75 times of degree if also consider surplus.Can certainly make near reduction magnification variation 0.75 times according to getting many a spot of surpluses as stated, for example also can be set at 0.85 times to 0.6 times scope.Changing this reduction magnification through the ratio that changes first focal distance f 1 and second focal distance f 2 gets final product.
More than; As stated, according to the image read-out 101 of this execution mode 1, owing to constitute by a plurality of unit 13; So have the characteristic of small-sized common contact-type imageing sensor like this; And can play unavailable in the past following effect: even change is gone up at optical axis direction (Z direction) in the position of original copy face 1, the transfer printing multiplying power does not change yet, and can increase the depth of field.
Execution mode 2
Fig. 7 is the vertical view of structure that the image read-out 102 of execution mode 2 of the present invention is shown.The direction vertical with paper is main scanning direction, on this direction, arranged the unit 13 of explanation in the execution mode 1.That is, in Fig. 7,, has the structure of on the paper vertical direction, having arranged a plurality of lens though first lens arra 3 and second lens arra 4 can't be depicted as matrix shape.Fig. 8 illustrates the stereogram of first lens arra 3 and second lens arra 4.In addition, aperture 5 for example becomes structure as shown in Figure 9 among the figure that observes from y direction shown in Figure 7.
In the image read-out 102 of execution mode 2,200 pairs of original copy faces 1 of lighting device shine, and in the way of the light path of the scattered reflection light in reading original copy face 1, are inserted with the speculum 120,121 of turning back that makes the light path bending.In detail, between the original copy face 1 and first lens arra 3, be provided with the speculum 120 of turning back, between second lens arra 4 and imaging apparatus 8, be provided with the speculum 121 of turning back.In addition, in the image read-out with such structure 102, also keep above-mentioned each distance L 1～L4.The picture signal that is obtained by imaging apparatus 8 is sent to image processing apparatus 201, carry out with execution mode 1 in the narration the same image rectification of part.
In order to increase the depth of field of original copy face 1 side, use the big lens of focal length, and adopt the structure of inserting aperture for light beam is narrowed down.But according to this structure, optical path length is elongated.With respect to this, according to the image read-out 102 of execution mode 2, light path is turned back through the speculum 120,121 of turning back is set as stated, can realize the miniaturization of optical system.In image read-out 102, can reduce Z direction shown in Figure 7, i.e. device thickness on the direction vertical with original copy face 1.Therefore, play following effect: compare with execution mode 1, can constitute more small-sized image read-out.
In addition, about the image read-out 102 of execution mode 2, the basic structure of the optical system also structure with execution mode 1 is identical, so can obtain the effect that the image read-out 101 of execution mode 1 plays.
Figure 10 is the vertical view of structure that the image read-out 103 of execution mode 3 of the present invention is shown.In this image read-out 103, the structure in above-mentioned execution mode 2, the peristome in aperture 125 also is provided with the speculum 125a that turns back with the light path bending.In addition, for the structure in the above-mentioned execution mode 1, can also replace aperture 5 and the aperture 125 with speculum 125a is set.
For example; Can be through printing method of patterning as shown in Figure 9 on plane speculum, open the hole that peristome uses onboard and make aperture array as shown in Figure 9 and the whole bag of tricks such as method overlapping with plane speculum, make the aperture array 125 of such reflection-type.
In addition, the angle that is provided with through the speculum 120,121 of will turning back is made as relative original copy face 1 and surpasses 45 ° angle, can spatially separate the incident light and the reverberation of the aperture array 125 of reflection-type.In addition, in the image read-out with such structure 103, also keep above-mentioned each distance L 1～L4.
According to the image read-out 103 of execution mode 3, certainly obtain the effect that the image read-out 101 of above-mentioned execution mode 1 plays, can provide with y direction that the structure of execution mode 2 is compared at Figure 10 on the more small-sized image read-out that dwindles.
In addition,, to execution mode 3,, then produce the such shortcoming of chromatic aberation takes place at above-mentioned execution mode 1 if first lens arra 3 and second lens arra 4 are einzel lenses of refractive.Therefore, reading under the situation of coloured image,, can't obtain preferable image to the resulting image of each color separated.In order to prevent such phenomenon, constitute first lens arra 3 respectively and these row 4 of second lens get final product through achromatic lens.General gimmick as constituting achromatic lens can adopt two methods that lens material makes up that refractive index is different with Abbe number.
Figure 11 is the stereogram of structure that the image read-out 104 of execution mode 4 of the present invention is shown.Image read-out 104 in this execution mode 4 has following structure: the structure with explanation in the execution mode 1 is the basis; The aperture array 125 that possesses above-mentioned turn back speculum 120,121 and reflection-type, and the first mirror lens array 123 and the second mirror lens array 124 through reflection-type formed first lens arra 3 and second lens arra 4 respectively.Here, the first mirror lens array 123 is equivalent to play the example of part of the function of first optical element, and the second mirror lens array 124 is equivalent to play the example of part of the function of second optical element.
In addition; Here; First lens arra 3 and second lens arra, 4 both sides are made as the first mirror lens array 123 and the second mirror lens array 124 of reflection-type, but also can a certain side in first lens arra 3 and second lens arra 4 be changed to the first mirror lens array 123 or the second mirror lens array 124 of reflection-type.In addition, with respect to the structure in above-mentioned execution mode 1 and the execution mode 2, also can at least one side in first lens arra 3 and second lens arra 4 be changed to the first mirror lens array 123 and the second mirror lens array 124.
In addition, though not shown in Figure 11, under optics original copy face 1, there is cover glass (cover glass) usually.Cover glass is the element necessary in order to place original copy, also plays the whole effect of protection optical system.For each optical element, below be elaborated.In addition, the object of in Figure 11, representing with label 129 is the shadow shield of explanation in following execution mode 6, but omits explanation here.
In fact 200 pairs of original copy faces 1 of lighting device shine, and read the scattered reflection light in the original copy face 1, but consider certain light shafts that a bit send from the original copy face 1.Transmission the light path of light of above-mentioned cover glass through speculum 120 bendings of turning back, arrive the first mirror lens array 123.In this execution mode, set the relative original copy face 1 of angle that is provided with of the speculum 120 of turning back for 48 ° angle.According to this angle is set, becomes 6 ° angle to the normal direction of the relative first mirror lens array 123 of incidence angle of the light of the first mirror lens array, 123 incidents.Through this small oblique incidence, the reverberation in the first mirror lens array 123 can separate with incident light, arrives the aperture array 125 of next mirror-type.
In addition, the optics length from original copy face 1 to first mirror lens array 123 is 12mm.In addition, in the first mirror lens array 123, are concave mirror lens of focal distance f 1=12mm with each unit 13 corresponding lens, can know also that from Fig. 8 the opening shape of lens is rectangles.The transverse width of the opening shape of the lens corresponding, be that width on the sub scanning direction is 6mm with each unit 13.The effect of such concave mirror lens is to make the incident light collimation and be made as almost parallel light.The curve form of concave mirror lens also can be a sphere, but also can be made as aspherical shape in order to obtain better resolution.
Light after collimating through the first mirror lens array 123 that is formed by the concave mirror lens arrives the aperture array 125 that separates the reflection-type of optical path distance L2=12mm from the first mirror lens array 123.Disposed each peristome 125a in the reflection type optical coil array 125 accordingly with the central authorities of each unit 13.In addition, in reflection type optical coil array 125, the opening diameter of each the peristome 125a corresponding with each unit 13 for example is φ 1.2mm.
As stated, also the first focal distance f 1=distance L 2 in the structure of this execution mode 4, so in image read-out 104, also satisfy the condition of telecentric optical system.Therefore, the chief ray of the light shafts of the peristome 125a through reflection type optical coil array 125 becomes the light that on original copy face 1, vertically sends.Therefore, in this execution mode 4, as illustrated in the enforcement mode 1, even the position of original copy face 1 changes on focus direction, the whole transfer printing multiplying power of optical system does not change yet yet.
The light that has passed through the peristome 125a of reflection type optical coil array 125 arrives the second mirror lens array 124.In the second mirror lens array 124, also be rectangular shape with each unit 13 corresponding lens, have second and focus on f2=9mm.Need not necessarily to equate from the optical path distance L3 of reflection type optical coil array 125 to second mirror lens arrays 124 and from the optical path distance L4 of second mirror lens array 124 to the imaging apparatus 8 with the second focal distance f 2=9mm; But in this example, be made as distance L 3=distance L 4=9mm.In addition, if distance L 3=f2, then the image planes side also satisfies the condition of telecentric optical system, changes with respect to the offset of the focus direction of imaging apparatus 8 so can prevent the transfer printing multiplying power.
By the light shafts of the second mirror lens array 124 reflection through the speculum 121 of turning back to the vertical direction bending, imaging in 8 of imaging apparatuss.The picture signal that is obtained by imaging apparatus 8 is sent to image processing apparatus 201, carry out with execution mode 1 in the narration the same image rectification of part.
Structure in the image read-out 104 of this execution mode 4 as stated, and is identical with the part of narration in the execution mode 1 but for characteristic, the image processing method of the image of the optical image that obtains, so omit here.
According to above-mentioned image read-out 104, certainly obtain the effect that the image read-out 101 of above-mentioned execution mode 1 plays, and can obtain following two distinctive effects.
One is to constitute first lens arra and second lens arra through the mirror lens array by reflection-type, can constitute that light path is turned back, the point of more small-sized optical system.
Another is owing in reflection, there is not a chromatic dispersion, so the point of chromatic aberation can not take place through the mirror lens array 123,124 that uses reflection-type.In the lens of long array-like, in fact being difficult to sticks together two different types of glass at an easy rate makes lens.Therefore, in the reading device of the coloured image that needs chromatic aberation to proofread and correct, through the mirror lens array that uses the such reflection-type of this execution mode 4 chromatic aberation is proofreaied and correct and become easy.
This execution mode 5 is following structures: in above-mentioned execution mode 1～4; Among at least one side at least one side in first lens arra 3 and second lens arra 4 and the first mirror lens array 123 and the second mirror lens array 124, the lens section corresponding with the unit of adjacency 13 is integrally formed by resin material.
In the structure of the mirror lens array that has used the illustrated reflection-type of above-mentioned execution mode 4, be in the structure of image read-out 104 shown in Figure 11; The first mirror lens array 123 and the second mirror lens array 124 become approaching structure, can be with both ester mouldings integratedly.Therefore, the structure of execution mode 5 has king-sized effect with respect to execution mode 4 such structures, can make bigger contribution to simplification and cost reduction that the device of realizing through raising positioning accuracy, minimizing holding member is assembled.
For example, under the situation of the original copy that reads the A3 paper size, on main scanning direction, need the length of about 300mm.When the width with a unit 13 is made as 6mm, need to arrange 50 unit 13.Also can be with first lens arra 3, second lens arra 4, the first mirror lens array 123 and the second mirror lens array 124 of alignment arrangements carry out ester moulding integratedly accordingly with 50 unit 13.But, on making, can't make under the situation of so large-scale lens arra, also can with a plurality of unit 13 corresponding lens components carry out as a unit integrally formed, and when assembling with its alignment arrangements.For example, made will be corresponding with 5 unit part as a unit and under the situation of integrally formed lens arra, the width of the lens arra on the main scanning direction becomes 30mm, it is easy that the processing of molding die and ester moulding become.
This execution mode 6 is following structures: in second lens arra 4 and the second mirror lens array 124 in above-mentioned execution mode 1～4, between the lens of adjacency, be provided with shading wall 129.
Figure 12 is the vertical view of structure that the image read-out 106 of the structure with such execution mode 6 is shown.Getting in the device 106 at image shown in Figure 12, for example is the image read-out 101 to execution mode 1, in 4 structures that are provided with shading wall 129 respectively of second lens of adjacency.In addition, in image read-out shown in Figure 11 104, be in the second mirror lens array 124, between each second mirror lens corresponding, be provided with the structure of shading wall 129 with each unit 13.
In Figure 12, an example of the ray tracing when representing not have shading wall 129 with label 20.Label 20 is a diffused light light.Diffused light light 20 is following light: although shown in figure 12ly follow the light path of standard through first lens arra 3, in the position of second lens arra 4, be blended into adjacent unit 13.Such diffused light light 20 is owing to causing the deterioration of picture, so need to remove.
Therefore, shown in figure 12 through shading wall 129 is set, can interdict and remove the diffused light light 20 that will invade to the unit 13 of adjacency.And, in the position of second lens arra 4, the contributive main light shafts that form images are dwindled, so even in the boundary setting of 4 on each second lens shading wall 129, shading wall 129 can not interdict the contributive main light shafts that form images yet.
In addition, as stated, in the structure of the such reflection optical system of image read-out shown in Figure 11 104, also shading wall 129 can be set.
Like this; Image read-out 106 according to execution mode 6; The effect that the image read-out 101 that certainly obtains above-mentioned execution mode 1 plays to the image read-out 104 of execution mode 4; Boundary member through each unit 13 in second lens arra 4 is provided with shading wall 129, can only remove diffused light effectively, be prevented as deterioration effect.
In addition, through suitably making up the execution mode arbitrarily in the above-mentioned various execution mode, can play the effect that has separately.
In the present invention, with reference to accompanying drawing, and preferred embodiment carried out abundant record explicitly, but certainly carried out various distortion, modification to those skilled in the art.Such distortion, only revise otherwise break away from the scope of the present invention of appending claims, then be interpreted as being included in wherein.
In addition, as a reference, special all disclosures of being willing to 2007-183925 number specification, accompanying drawing, claims and summary of Japanese patent application No. Japan of application on July 13rd, 2007 have been quoted in this manual.
Utilizability on the industry
The present invention is applicable to middle image read-outs that uses such as photocopiers.
Claims (8)
1. image read-out possesses:
Lighting device is used for being thrown light on by the shooting thing as the shooting object;
With the above-mentioned a plurality of imaging optical systems that are carried out to picture by the shooting thing;
Imaging apparatus is provided with above-mentioned imaging optical system accordingly, and the picture after the imaging is made a video recording; And
Image processing apparatus, from the image that obtains through above-mentioned imaging apparatus, reduce original in the shooting thing,
Above-mentioned image read-out is characterised in that,
Above-mentioned a plurality of imaging optical system is along to being provided with by the main scanning direction of shooting thing with adjoining each other, and the above-mentioned thing of being made a video recording is reversed dwindle and form images,
Each above-mentioned imaging optical system has: from above-mentioned first optical element with first focal length that is disposed towards above-mentioned imaging apparatus by the shooting thing; Be positioned at the aperture on the focal position of rear side of above-mentioned first optical element; And have second optical element of second focal length littler than above-mentioned first focal length at the rear side of said aperture, and,
Between two imaging optical systems of configuration with adjoining each other, the total image of each imaging apparatus by the boundary member between the imaging optical system of imaging apparatus shooting.
2. image read-out according to claim 1 is characterized in that,
Each above-mentioned imaging optical system is also had the speculum that makes the light path bending from above-mentioned by the shooting thing in the light path of above-mentioned imaging apparatus.
3. image read-out according to claim 1 is characterized in that,
Said aperture has the speculum that makes the light path bending at peristome.
4. image read-out according to claim 1 is characterized in that,
At least one side in above-mentioned first optical element and above-mentioned second optical element is the mirror lens of reflection-type.
5. image read-out according to claim 1 is characterized in that,
At least one side in above-mentioned first optical element and above-mentioned second optical element is shaped to form between the imaging optical system of adjacency integratedly.
6. image read-out according to claim 1 is characterized in that,
Said aperture can exchange with the aperture that varies in size of peristome.
7. image read-out according to claim 1 is characterized in that,
Each above-mentioned imaging optical system also has the shadow shield between above-mentioned second optical element of the adjacency of being configured in.
8. image read-out according to claim 1 is characterized in that,
Reduction magnification in the above-mentioned imaging optical system is identical in each above-mentioned imaging optical system, is from 0.85 to 0.6 times.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP183925/2007 | 2007-07-13 | ||
| JP2007183925 | 2007-07-13 | ||
| PCT/JP2008/055658 WO2009011153A1 (en) | 2007-07-13 | 2008-03-26 | Image-scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101743740A CN101743740A (en) | 2010-06-16 |
| CN101743740B true CN101743740B (en) | 2012-04-04 |
Family
ID=40259497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800245764A Active CN101743740B (en) | 2007-07-13 | 2008-03-26 | Image-scanning device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8482813B2 (en) |
| EP (1) | EP2166743A4 (en) |
| JP (2) | JPWO2009011153A1 (en) |
| CN (1) | CN101743740B (en) |
| WO (1) | WO2009011153A1 (en) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4965594B2 (en) * | 2009-03-02 | 2012-07-04 | 三菱電機株式会社 | Image reading device |
| JP5251619B2 (en) * | 2009-03-09 | 2013-07-31 | 三菱電機株式会社 | Image sensor |
| JP5174729B2 (en) * | 2009-03-25 | 2013-04-03 | 三菱電機株式会社 | Image reading device |
| JP2011223190A (en) * | 2010-04-07 | 2011-11-04 | Sony Corp | Image reader and optical module used therein |
| US9485495B2 (en) | 2010-08-09 | 2016-11-01 | Qualcomm Incorporated | Autofocus for stereo images |
| JP5848889B2 (en) * | 2011-05-26 | 2016-01-27 | 株式会社沖データ | Lens unit, LED head, exposure apparatus, image forming apparatus, and reading apparatus |
| US9438889B2 (en) | 2011-09-21 | 2016-09-06 | Qualcomm Incorporated | System and method for improving methods of manufacturing stereoscopic image sensors |
| JP5724823B2 (en) | 2011-10-25 | 2015-05-27 | 三菱電機株式会社 | Image reading device |
| JP5806103B2 (en) * | 2011-12-20 | 2015-11-10 | 三菱電機株式会社 | Image reading device |
| EP2772182B1 (en) * | 2012-09-03 | 2016-09-07 | Olympus Corporation | Scanning endoscope system |
| US9398264B2 (en) | 2012-10-19 | 2016-07-19 | Qualcomm Incorporated | Multi-camera system using folded optics |
| JP6270314B2 (en) * | 2012-12-27 | 2018-01-31 | キヤノン株式会社 | Optical apparatus, image forming apparatus, and image reading apparatus |
| US10178373B2 (en) | 2013-08-16 | 2019-01-08 | Qualcomm Incorporated | Stereo yaw correction using autofocus feedback |
| US9383550B2 (en) | 2014-04-04 | 2016-07-05 | Qualcomm Incorporated | Auto-focus in low-profile folded optics multi-camera system |
| US9374516B2 (en) | 2014-04-04 | 2016-06-21 | Qualcomm Incorporated | Auto-focus in low-profile folded optics multi-camera system |
| US10013764B2 (en) | 2014-06-19 | 2018-07-03 | Qualcomm Incorporated | Local adaptive histogram equalization |
| US9541740B2 (en) | 2014-06-20 | 2017-01-10 | Qualcomm Incorporated | Folded optic array camera using refractive prisms |
| US9294672B2 (en) | 2014-06-20 | 2016-03-22 | Qualcomm Incorporated | Multi-camera system using folded optics free from parallax and tilt artifacts |
| US9819863B2 (en) | 2014-06-20 | 2017-11-14 | Qualcomm Incorporated | Wide field of view array camera for hemispheric and spherical imaging |
| US9386222B2 (en) | 2014-06-20 | 2016-07-05 | Qualcomm Incorporated | Multi-camera system using folded optics free from parallax artifacts |
| US9549107B2 (en) | 2014-06-20 | 2017-01-17 | Qualcomm Incorporated | Autofocus for folded optic array cameras |
| US9832381B2 (en) | 2014-10-31 | 2017-11-28 | Qualcomm Incorporated | Optical image stabilization for thin cameras |
| JP6504353B2 (en) | 2015-04-28 | 2019-04-24 | 株式会社リコー | Image display device and object device |
| TWI573432B (en) * | 2016-05-04 | 2017-03-01 | 全友電腦股份有限公司 | Method For Scanning An Object Having A Depth Image And System Thereof |
| CN109076133B (en) * | 2016-05-13 | 2020-03-06 | 三菱电机株式会社 | Image reading apparatus |
| JP6531720B2 (en) * | 2016-05-25 | 2019-06-19 | 京セラドキュメントソリューションズ株式会社 | Image reader |
| JP6572828B2 (en) * | 2016-05-25 | 2019-09-11 | 京セラドキュメントソリューションズ株式会社 | Image reading device |
| JP6889390B2 (en) * | 2016-11-09 | 2021-06-18 | コニカミノルタ株式会社 | Image reader |
| JP6583233B2 (en) * | 2016-11-30 | 2019-10-02 | 京セラドキュメントソリューションズ株式会社 | Reading module, image reading apparatus including the same, and image forming apparatus |
| CN108156347B (en) * | 2016-11-30 | 2020-07-28 | 京瓷办公信息系统株式会社 | Reading module, image reading apparatus, and image forming apparatus |
| CN109716744B (en) * | 2016-11-30 | 2020-07-28 | 京瓷办公信息系统株式会社 | Reading module, image reading apparatus including the same, and image forming apparatus including the same |
| JP2018207138A (en) * | 2017-05-30 | 2018-12-27 | セイコーエプソン株式会社 | Scanner and method for producing scan data |
| JP2018207140A (en) * | 2017-05-30 | 2018-12-27 | セイコーエプソン株式会社 | Scanner and method for producing scan data |
| JP2018207437A (en) * | 2017-06-09 | 2018-12-27 | セイコーエプソン株式会社 | Scanner and method for producing scan data |
| JP6895068B2 (en) * | 2017-08-07 | 2021-06-30 | 京セラドキュメントソリューションズ株式会社 | A reading module, an image reading device equipped with the reading module, and an image forming device. |
| JP6895069B2 (en) * | 2017-08-07 | 2021-06-30 | 京セラドキュメントソリューションズ株式会社 | A reading module, an image reading device equipped with the reading module, and an image forming device. |
| WO2020162258A1 (en) * | 2019-02-08 | 2020-08-13 | ソニー株式会社 | Image display device and head mount display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489995A (en) * | 1992-06-11 | 1996-02-06 | Canon Kabushiki Kaisha | Contact type image sensor, producing method of the same, and information processing apparatus |
| US5985491A (en) * | 1995-09-13 | 1999-11-16 | Samsung Electronics Co., Ltd. | Reflectors for photolithographic projection and related systems and methods |
| CN1815204A (en) * | 2005-01-31 | 2006-08-09 | 应用材料股份有限公司 | Automatic optical inspection using multiple objectives |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017A (en) | 1847-03-13 | 1847-03-13 | Self-adjusting- pendulum | |
| JPS5074948A (en) | 1973-11-02 | 1975-06-19 | ||
| JPS56146355A (en) | 1980-04-15 | 1981-11-13 | Canon Inc | Optical system of original reader |
| JPS59105762A (en) | 1982-12-09 | 1984-06-19 | Toshiba Corp | Original reader |
| JPS6051816A (en) | 1983-08-31 | 1985-03-23 | Toshiba Corp | Reader |
| JPS6074869A (en) | 1983-09-30 | 1985-04-27 | Toshiba Corp | Close contact image sensor |
| JPH0399576A (en) | 1989-09-12 | 1991-04-24 | Sanyo Electric Co Ltd | Contact type image sensor |
| JPH04138766A (en) | 1990-09-29 | 1992-05-13 | Canon Inc | Color picture reader |
| JPH0514600A (en) * | 1991-06-28 | 1993-01-22 | Kyocera Corp | Original reader |
| US5686960A (en) | 1992-01-14 | 1997-11-11 | Michael Sussman | Image input device having optical deflection elements for capturing multiple sub-images |
| JPH05224005A (en) | 1992-02-07 | 1993-09-03 | Nippon Sheet Glass Co Ltd | Refractive index distribution type lens array body |
| JPH05224146A (en) | 1992-02-12 | 1993-09-03 | Victor Co Of Japan Ltd | Light deflector |
| JP2872488B2 (en) | 1992-07-02 | 1999-03-17 | キヤノン株式会社 | Contact image sensor and method of manufacturing the same |
| US5444520A (en) | 1993-05-17 | 1995-08-22 | Kyocera Corporation | Image devices |
| JPH08204899A (en) | 1994-11-25 | 1996-08-09 | Nippon Sheet Glass Co Ltd | Image reader |
| US5907438A (en) | 1996-01-30 | 1999-05-25 | Ricoh Company, Ltd. | Imaging device |
| JPH09247386A (en) | 1996-03-07 | 1997-09-19 | Tec Corp | Image reader |
| JPH10153751A (en) | 1996-09-25 | 1998-06-09 | Ricoh Co Ltd | Image forming element |
| JPH10308852A (en) | 1997-05-02 | 1998-11-17 | Ricoh Co Ltd | Image reader |
| JPH118742A (en) | 1997-06-13 | 1999-01-12 | Mark:Kk | Mirror array reader |
| DE19927991A1 (en) | 1998-10-05 | 2000-04-13 | Hewlett Packard Co | Cell-based image sensor, combines signals from two photosensitive elements, receiving overlapping first and second image sections via two lenses, and outputs signal representing image |
| US6373995B1 (en) | 1998-11-05 | 2002-04-16 | Agilent Technologies, Inc. | Method and apparatus for processing image data acquired by an optical scanning device |
| JP2002049326A (en) * | 2000-08-02 | 2002-02-15 | Fuji Photo Film Co Ltd | Plane light source and display element using the same |
| JP3530157B2 (en) | 2001-08-16 | 2004-05-24 | 大日本スクリーン製造株式会社 | Exposure recording device |
| JP2005037448A (en) | 2003-07-15 | 2005-02-10 | Ricoh Opt Ind Co Ltd | Line image forming optical system, line image writing device, and line image reading device |
| US20050179962A1 (en) | 2004-02-13 | 2005-08-18 | Williamson James B. | Compact optical scanhead |
| JP4138766B2 (en) | 2005-03-10 | 2008-08-27 | 東名通信工業株式会社 | Modular jack |
| US20080225108A1 (en) * | 2007-03-12 | 2008-09-18 | Seiko Epson Corporation | Line Head and an Image Forming Apparatus Using the Line Head |
| JP4453752B2 (en) * | 2007-12-06 | 2010-04-21 | 三菱電機株式会社 | Image reading device |
| JP5074948B2 (en) | 2008-02-14 | 2012-11-14 | 富士フイルム株式会社 | Imaging lens and imaging apparatus |
| WO2009122483A1 (en) * | 2008-03-31 | 2009-10-08 | 三菱電機株式会社 | Image scanner |
| WO2012008048A1 (en) | 2010-07-16 | 2012-01-19 | トヨタ自動車株式会社 | Device for controlling starter, method for controlling starter, and engine starting device |
-
2008
- 2008-03-26 CN CN2008800245764A patent/CN101743740B/en active Active
- 2008-03-26 US US12/668,908 patent/US8482813B2/en active Active
- 2008-03-26 WO PCT/JP2008/055658 patent/WO2009011153A1/en active Application Filing
- 2008-03-26 JP JP2009523560A patent/JPWO2009011153A1/en active Pending
- 2008-03-26 EP EP08738882A patent/EP2166743A4/en not_active Withdrawn
-
2012
- 2012-09-07 JP JP2012197069A patent/JP2012235538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489995A (en) * | 1992-06-11 | 1996-02-06 | Canon Kabushiki Kaisha | Contact type image sensor, producing method of the same, and information processing apparatus |
| US5985491A (en) * | 1995-09-13 | 1999-11-16 | Samsung Electronics Co., Ltd. | Reflectors for photolithographic projection and related systems and methods |
| CN1815204A (en) * | 2005-01-31 | 2006-08-09 | 应用材料股份有限公司 | Automatic optical inspection using multiple objectives |
Non-Patent Citations (4)
| Title |
|---|
| JP平10-153751A 1998.06.09 |
| JP平4-138766A 1992.05.13 |
| JP平5-14600A 1993.01.22 |
| JP平5-224005A 1993.09.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100284045A1 (en) | 2010-11-11 |
| JPWO2009011153A1 (en) | 2010-09-16 |
| US8482813B2 (en) | 2013-07-09 |
| WO2009011153A1 (en) | 2009-01-22 |
| EP2166743A1 (en) | 2010-03-24 |
| EP2166743A4 (en) | 2012-02-22 |
| JP2012235538A (en) | 2012-11-29 |
| CN101743740A (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101743740B (en) | Image-scanning device | |
| CN103179312B (en) | Image read-out | |
| CN101981910A (en) | Image scanner | |
| JP4560558B2 (en) | Image reading apparatus and image forming apparatus | |
| CN101867676A (en) | Lighting device and image read-out | |
| CN101359212B (en) | Linehead and imaging apparatus incorporating the same | |
| CN101408670A (en) | Scanning optical device, image forming apparatus using the same, and method of adjusting scanning optical device | |
| US4509826A (en) | Optical image staggering/destaggering arrangement for multiple array scanning system | |
| CN101373225A (en) | Erecting equal-magnification lens array plate, image sensor unit, and image reading device | |
| CN103718539A (en) | Image sensor unit and image reading device utilizing same | |
| CN101339294A (en) | Optical scanning device and image forming apparatus using the same | |
| CN101372179B (en) | Line head and image forming apparatus using the same | |
| CN101776798B (en) | Optical beam scanning device | |
| CN104181677B (en) | Image-reading lens, image-reading device, and image-forming apparatus | |
| US4676596A (en) | Optical device and document reader using the same | |
| CN104243756A (en) | Image sensor unit, image reading apparatus and image forming apparatus | |
| JPH10153751A (en) | Image forming element | |
| US6555854B2 (en) | Charge coupled device with multi-focus lengths | |
| JPS6276357A (en) | Solid-state image pickup device | |
| JPH03295354A (en) | Picture reader | |
| JP3258085B2 (en) | Line imaging device | |
| CN101387845B (en) | Line head and image forming device using the same | |
| CA1071449A (en) | Multiple lens system for an optical imaging device | |
| JP4163449B2 (en) | Reading lens and image reading apparatus | |
| JPS61146063A (en) | Original reader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |